Notes to the Consolidated Financial Statements (25) Trade and other payables in CHF million 2018 2017 Trade payables 300.1 309.8 Other payables 215.8 209.9 Total trade and other payables 515.9 519.7 Current portion 479.0 479.1 Non-current portion 36.9 40.6 Total trade and other payables 515.9 519.7 Maturity of non-current portion 1 to < 2 years 4.9 8.9 2 to < 5 years 24.0 27.0 >= 5 years 8.0 4.7 Total non-current trade and other payables 36.9 40.6 Currency denominations of the carrying amounts of trade and other payables EUR 197.1 204.6 CHF 36.9 36.8 USD 66.7 65.1 Other 215.2 213.2 Total trade and other payables 515.9 519.7 The change in trade and other payables includes a currency translation adjustment which reduces trade and other payables by CHF 14.3 million in 2018. This is due to the change in closing rates in 2018 compared to those in 2017. Other payables primarily consist of liabilities for personnel expenses totaling CHF 7.9 million (2017: CHF 7.8 million), liabilities for social contributions totaling CHF 28.7 million (2017: CHF 24.9 million), liabilities for source-deducted taxes and VAT totaling CHF 96.7 million (2017: CHF 99.0 million) and customers with credit balances totaling CHF 32.5 million (2017: CHF 30.7 million). 2018 Financial Report | 63